A ZnO(Ga) scintillator has been developed which selectively detects 14 MeV neutrons in a large 2.5 MeV neutron and hard x‐ray background. The detector will be useful in measuring the 14 MeV neutron emission with trace concentrations of tritium in a predominately deuterium plasma during early experiments in the Tokamak Fusion Test Reactor (TFTR) or the Joint European Torus (JET).